{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951497,-0.307659,0.000000,0.000000,0.114959,-0.355535,0.927566,0.000000,-0.285105,0.881744,0.375822,0.000000,-1819298.804086,5626546.126685,2382124.836352,1],    "boundingVolume": {    "region": [1.883480,0.385246,1.883576,0.385321,0.000000,19.202102]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/19/50_38801.b3dm"}}}